###### Asked in Needs a Topic

Needs a Topic

# When preparing a pr and c you must?

## Answer

###### Wiki User

###### September 17, 2015 4:27PM

Flash reports are

## Related Questions

###### Asked in Probability

### What is the describing of the complementary event and find its probability?

Suppose there is an event A and the probability of A happening
is Pr(A). Then the complementary event is that A does not happen or
that "not-A" happens: this is often denoted by A'.
Then Pr(A') = 1 - Pr(A).
Suppose there is an event A and the probability of A happening is
Pr(A). Then the complementary event is that A does not happen or
that "not-A" happens: this is often denoted by A'.
Then Pr(A') = 1 - Pr(A).
Suppose there is an event A and the probability of A happening is
Pr(A). Then the complementary event is that A does not happen or
that "not-A" happens: this is often denoted by A'.
Then Pr(A') = 1 - Pr(A).
Suppose there is an event A and the probability of A happening is
Pr(A). Then the complementary event is that A does not happen or
that "not-A" happens: this is often denoted by A'.
Then Pr(A') = 1 - Pr(A).

###### Asked in Probability

### What is the probability of obtaining exactly four tails in five flips of a coin given that at least 3 are tails?

Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3
tails)/Pr(at least 3 tails)
= Pr(4 tails)/Pr(at least 3 tails)
= (5/32) / (1/2) = 5/16.
Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3
tails)/Pr(at least 3 tails)
= Pr(4 tails)/Pr(at least 3 tails)
= (5/32) / (1/2) = 5/16.
Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3
tails)/Pr(at least 3 tails)
= Pr(4 tails)/Pr(at least 3 tails)
= (5/32) / (1/2) = 5/16.
Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3
tails)/Pr(at least 3 tails)
= Pr(4 tails)/Pr(at least 3 tails)
= (5/32) / (1/2) = 5/16.

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